PhysioTel Implants

When using the 4ET implants, many researchers monitor the implant battery voltage using Ponemah’s display features to determine when the voltage level is low enough to require replacing the transmi...

During normal operation, a PhysioTel Digital implant will remain ON (stand-by or active) when in communication with the acquisition system. A signal (beacon) is sent from the system to the implant ...

Some DSI transmitters have a battery monitor mode allowing the user to view how much battery life is left. The Dataquest A.R.T. User Guide contains a detailed procedure of how to determine the rema...

Introduction The HD-XG implant provides continuous measurements of blood glucose, temperature and activity in mice and rats. The glucose sensor is affected over the implant duration by the presenc...

Although DSI transmitters are not specifically designed with defibrillator protection, we do not expect to see defibrillator use causing any damage to the transmitter nor have we seen damage when d...

The HD-XG is a powerful tool for the collection of continuous glucose, temperature, and activity in mice and rats. Successful implementation requires that the user understand the following: Surger...

DSI cannot guarantee the accuracy of the physiologic data on any of the channels when the transmitter is in battery monitor mode. When a transmitter is in battery monitor mode, one of the channels ...

Applications involving sampling of electrical signals like ECG and EEG require telemetry implants with adequate technical specifications to accurately acquire and analyze data. The purpose of this ...

Most of the time, investigators have their DSI implants in use, collecting valuable data. Occasionally a need to store them for a period of time will arise. It is crucial that the implants be store...

It is possible to expose an implanted animal to x-ray without damaging the implant's internal components.  Acquiring data during the exposure, however, may cause noise or signal interference. This ...

DSI does not recommend using the implantable telemetry catheter for mouse Left Ventricular Pressure (LVP) as it does not have the required frequency response necessary to measure mouse LVP. Due to ...

Electrocautery may cause a sustained electrical potential that will damage biopotential channels.  It should be OK before biopotential leads are attached to the animal, but after this it can damage...

DSI has a documents quality management system based on ISO 9001:2008 DSI's products are compliant with regulations of the markets where our products are sold and distributed, but not limited to EU ...

The two main reasons why the lower corner of the biopotential frequency response is different between the ECG and EEG signals (as called out in DSI Guidelines for Biopotential Applications) are: D...

Background The PhysioTel Digital acquisition interface was initially released supporting four implants per CLC. With Ponemah v5.20-SP9 (Service Pack 9) and Ponemah v6.33, the number of implants sup...

Symptom The ECG signal being collected from the PhysioTel implant (non-HD/non-Digital) is inverted due to inverted biopotential lead placement.   Resolution Enter a negative sign in front of the bi...

If a PhysioTel Digital suture aid detaches from the implant body, it may be able to be reattached using Nusil Med-1511 Silicon Adhesive. DSI does not currently sell it individually, but it is part ...

The implant pressure catheter may become curved or bent after being implanted. This may require a need to straighten the catheter for future use. To straighten the catheter: Soak the transmitter i...

The following outlines the recommended device orientation for accurate temperature readings when the implant body is placed subcutaneously. Implant Orientation makes a difference for the following...

All DSI implants are carefully calibrated and tested before being shipped to the researcher.  However, we strongly recommend that all pressure devices be checked again before surgery and after expl...

In certain applications, scientists may wish to collected implantable telemetry data synchronized with analog (hardwired) signals. This article details the current sync specification achieved when ...

To use the new HD-S20 and/or HD-S1 implants in Ponemah versions v6.33 and v5.20-SP9, an updated product definition file is required for the DSI software. Ponemah must be at least Ponemah version 6....

Hemocompatibility Testing For PhysioTel and PhysioTel Digital: The suppliers of the raw materials used to manufacture the implants have performed hemocompatibility testing. The treatment chemicals...

Background A high offset in sterile packaging may be seen with large animal implant catheters that were manufactured prior to May 2016, as of the most recent occurrence of the issue. The offset val...

Background All PhysioTel™ Digital Implants are powered by lithium batteries. Lithium batteries offer many advantages including high energy density and a low self-discharge rate. These advantages co...

DSI's PhysioTel Digital Implants are thoroughly tested and pertinent results are recorded (see attachment for tested performance parameters). DSI no longer provides calibration values because they ...

Model:           PhysioTel Digital Implants (all models) Version:        15.9886 Date:             July 2018    Firmware Release Notes for PhysioTel Digital Implants indicate the significant revisi...

PhysioTel Digital implants and CLCs are tuned to region (e.g. US, Europe, Japan, etc.) specific frequencies based on the regulation certification DSI obtained from the regulatory bodies within thos...

Many configurations are available to enable flexibility between studies.  Configurations that are more common and therefore have faster lead times are highlighted for convenience.  Part numbers may...